摘要
文章通过观察人工养殖环境下,克氏原螯虾(Procambarus clarkiaii)在堆积的竹筒和PVC 管2 种类型洞穴中的分布情况,分析比较了克氏原螯虾对2 种洞穴的选择适应性和空间分布占比规律,不同洞穴内外的雌雄比例分布规律,及单一洞穴内虾的数量分布及雌雄比例规律。实验结果表明,克氏原螯虾喜栖息躲藏于洞穴中(A 组83.47%,B 组89.87%),尤其喜栖息躲藏于竹筒洞穴中[B 组竹筒(71.80%)和PVC 管(11.63%)]。垂直摆放洞穴的上下位置会影响克氏原螯虾分布,克氏原螯虾更喜欢在中下层和下层洞穴中躲藏,其分布数量由下而上依次降低。克氏原螯虾具有一雄多雌同居一穴的现象,不同垂直空间雌雄分布比例没有明显规律,但雌雄比最高分别出现在A 组的最下层(3.43∶1)和B 组竹筒洞穴的最上层(2.86∶1)。
We investigated the selection adaptability and spatial distribution ratio, distribution of sex ratio inside or outside different caves, as well as the quantity and sex ratio in single cave of Procambarus clarkii in two kinds of caves (staked bamboo tube and PVC tube) during artificial breeding. The results show that P. clarkii tended to hide in caves (Group A: 83.47%, Group B: 89.87%),especially in bamboo cave [Group B: bamboo tube (71.80%) and PVC tube (11.63%)]. Vertical placement of the cave will affect the distribution of P. clarkii which prefered to hide in the caves at middle and lower layers as well at lower layer, and the quantity reduced from bottom to top. P.clarkii had a phenomenon of polygyny cohabitation, but the laws of male and female distribution in different vertical spaces were not obvious, with the highest ratio of male and female in the lowerest layer of Group A (3.43:1) and the uppermost layer of Group B bamboo cave (2.86:1).
作者
骆磊
黄建华
刘栋梁
谭理琦
江世贵
周发林
姜松
杨其彬
杨丽诗
LUO Lei;HUANG Jianhua;LIU Dongliang;TAN Liqi;JIANG Shigui;ZHOU Falin;JIANG Song;YANG Qibin;YANG Lishi(Shenzhen Base of South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shenzhen 518108,China;Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization,Ministry of Agriculture and Rural Affairs,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China;College of Fisheries and Life Science,Shanghai Ocean University,Shanghai 201306,China;Futian District Animal Epidemic Prevention Supervision Institute,Shenzhen 51800,China;Tropical Aquaculture Research and Development Center of South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Sanya 572018,China)
出处
《南方水产科学》
CAS
CSCD
北大核心
2019年第4期76-81,共6页
South China Fisheries Science
基金
广东省科技创新青年拔尖人才项目(2015TQ01N583)
深圳市知识创新计划基础研究项目(基20180290 JCYJ20170412110605075,JCYJ20180504170233070)
关键词
克氏原螯虾
竹筒
PVC管
洞穴选择
分布规律
Procambarus clarkii
bamboo tube
PVC tube
cave selection
distribution rule
